Add some notes on windows file paths
Add some notes on windows file paths

Windows users hav eto be careful to use `file:///` prefix
for stuff in `${user.home}`.

Fixes gh-308

royclarkson/spring-cloud-config,royclarkson/spring-cloud-config,marbon87/spring-cloud-config,fkissel/spring-cloud-config,spring-cloud/spring-cloud-config,marbon87/spring-cloud-config,mbenson/spring-cloud-config,spring-cloud/spring-cloud-config,shakuzen/spring-cloud-config,mbenson/spring-cloud-config,spring-cloud/spring-cloud-config,fkissel/spring-cloud-config,shakuzen/spring-cloud-config,fkissel/spring-cloud-config,marbon87/spring-cloud-config,royclarkson/spring-cloud-config,shakuzen/spring-cloud-config,mbenson/spring-cloud-config